Hello, so as of the past few weeks during and after excersize or sexual activity (any sexual activity) (mainly during and after sexual activity)I get a crushing migrain and extreme pains in the back of my head and neck. Also I begin to feel my pulse in both temples very strongly on my head without even touching them, which isn't normal for me. Sometimes this is associated with slight chest pain. This lasts for up to 30 minutes after said activities. This normally never happened untill the past 2 weeks. I do recognize that high blood pressure runs in my family (if that is associated with it), but I have always had a low blood pressure. Also for whatever it contributes I am 16 years of age and am in very great shape (though I am slightly underweight).